Drill chuck



FIG. 1 is an elevational view showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof, the left side view beingsymmetrical to the right side view;

FIG. 6 is a perspective view thereof; and,

FIG. 7 is a perspective view thereof.

The ornamental design for a drill chuck, as shown and described.